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s344n2d4d5 [400]
2 years ago
10

-3|x|+2x-1 if x=-5 plz help

Mathematics
2 answers:
Serga [27]2 years ago
8 0

Answer:

-26

Step-by-step explanation:

-3|x|+2x-1

x=-5

-3|-5|+2(-5)-1

-3(5)-10-1

-15-10-1

-26

Savatey [412]2 years ago
5 0

Answer:

 f(x) = -3|x| + 2x - 1

f(-5) = -3|-5| + 2*(-5) - 1

      = -3*5 + 2*(-5) - 1

      = -15 - 10 - 1

      = -26

Hope this helps!

:)

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A right triangle (90) has a one angle that measures 35 degrees. What is the measure of the third angle?
pychu [463]

Answer:

55°

Step-by-step explanation:

triangle= 180°

third angle= 180-90-35

= 55°

4 0
2 years ago
4x-2=18 find what x means
MakcuM [25]
4x-2=18 -2 on both sides 4x=16 divid by 4 on both sides x= 4
6 0
3 years ago
Determine whether theses lines are parallel, perpendicular or neither
belka [17]

Answer:

Lines 2 and 3 are parallel with slope (-2/3) and different y intercepts, and both are perpendicular to line 1              (-1) / (3/2) = (-2/3)

Step-by-step explanation:

Parallel lines have the same slope

Perpendicular lines have negative reciprocal slopes

line 1: 6x - 4y = 2

line 1: 4y =  6x - 2

line 1:   y = (3/2)x - 0.5

line 2:  y = (-2/3)x - 6

line 3:3y = -2x + 4

line 3: y = (-2/3)x + 4/3

8 0
3 years ago
Can someone give me an answer for this?
stealth61 [152]

Answer:

444 adult ticket

763 student ticket

Step-by-step explanation:

let a = number of adult ticket

let s = number of student ticket

s+a=1207

5a+s=2983

get s by itself in the 1st equation so you can plug it into the 2nd

s+a=1207

-a      -a

s=1207-a

5a+(1207-a)=2983

solve for a

4a+1207=2983

-1207      -1207

4a= 1776

444

this is adult ticket amount

subtract this from 1207 to get student amount

1207-444=763

8 0
3 years ago
Among all right circular cones with a slant height of 24​, what are the dimensions​ (radius and​ height) that maximize the volum
aleksklad [387]

Answer:

5571.99

Step-by-step explanation:

We need to use the Pythagorean theorem to solve the problem.

The theorem indicates that,

r^2+h^2=24^2 \\r^2+h^2=576\\r^2=576-h^2

Once this is defined, we proceed to define the volume of a cone,

v=\frac{1}{3}\pi r^2 h

Substituting,

v=\frac{1}{3} \pi (576-h^2)h\\v=\frac{1}{3} \pi (576h-h^3)

We need to find the maximum height, so we proceed to calculate h, by means of its derivative and equalizing 0,

\frac{dv}{dh} = \frac{1}{3} \pi (576-3h^2)

\frac{dv}{dh} = 0 then \rightarrow \frac{1}{3}\pi(576-3h^2)=0

h_1=-8\sqrt{3}\\h_2=8\sqrt{3}

<em>We select the positiv value.</em>

We have then,

r^2 = 576-(8\sqrt3)^2 = 384\\r=\sqrt{384}

We can now calculate the maximum volume,

V_{max}= \frac{1}{3}\pi r^2 h = \frac{1}{3}\pi (\sqrt{384})^2 (8\sqrt{3}) = 5571.99

4 0
3 years ago
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